adding csharp information

Author: aahill

articles/cognitive-services/language-service/whats-new.md

@@ -8,7 +8,7 @@ manager: nitinme
 ms.service: cognitive-services
 ms.subservice: language-service
 ms.topic: overview
-ms.date: 11/21/2022
+ms.date: 12/02/2022
 ms.author: aahi
 ms.custom: ignite-fall-2021, event-tier1-build-2022
 ---
@@ -17,13 +17,31 @@ ms.custom: ignite-fall-2021, event-tier1-build-2022
 
 Azure Cognitive Service for Language is updated on an ongoing basis. To stay up-to-date with recent developments, this article provides you with information about new releases and features.
 
+## December 2022
+
+* New version of the text analysis client library is available in preview for C#/.NET:
+    * [**Package (NuGet)**](https://www.nuget.org/packages/Azure.AI.TextAnalytics/5.3.0-beta.1)
+    * [**Changelog/Release History**](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/textanalytics/Azure.AI.TextAnalytics/CHANGELOG.md)
+    * [**ReadMe**](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/textanalytics/Azure.AI.TextAnalytics/README.md)
+    * [**Samples**](https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/textanalytics/Azure.AI.TextAnalytics/samples)
+
 ## November 2022
 
 * Expanded language support for:
     * [Opinion mining](./sentiment-opinion-mining/language-support.md)
 * Conversational PII now supports up to 40,000 characters as document size.
 * New versions of the text analysis client library are available in preview:
 
+    ### [C#/.NET](#tab/csharp)
+    
+    [**Package (NuGet)**](https://www.nuget.org/packages/Azure.AI.TextAnalytics/5.3.0-beta.1)
+    
+    [**Changelog/Release History**](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/textanalytics/Azure.AI.TextAnalytics/CHANGELOG.md)
+    
+    [**ReadMe**](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/textanalytics/Azure.AI.TextAnalytics/README.md)
+    
+    [**Samples**](https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/textanalytics/Azure.AI.TextAnalytics/samples)
+
     ### [Java](#tab/java)
 
     [**Package (Maven)**](https://mvnrepository.com/artifact/com.azure/azure-ai-textanalytics/5.3.0-beta.1)